private function edit_comment_form($com) {
        global $CFG;
        require_once($CFG->dirroot . '/mod/wiki/comments_form.php');
        require_once($CFG->dirroot . '/mod/wiki/editors/wiki_editor.php');

        if ($this->format == 'html') {
            $com->action = 'edit';
            $com->entrycomment_editor['text'] = $com->content;
            $com->commentoptions = array('trusttext' => true, 'maxfiles' => 0);

            $this->form->set_data($com);
            $this->form->display();
        } else {
            wiki_print_editor_wiki($this->page->id, $com->content, $this->format, -1, null, false, array(), 'editcomments', $com->id);
        }

    }

 private function edit_comment_form($com)
 {
     global $CFG;
     require_once $CFG->dirroot . '/mod/wiki/comments_form.php';
     require_once $CFG->dirroot . '/mod/wiki/editors/wiki_editor.php';
     if ($this->format == 'html') {
         $commentoptions = array('trusttext' => true, 'maxfiles' => 0);
         $com->action = 'edit';
         $com->entrycomment_editor['text'] = $com->content;
         $this->form->set_data($com, $commentoptions);
         $this->form->display();
     } else {
         $action = 'edit';
         $commentid = $com->id;
         $pageid = $this->page->id;
         $destination = $CFG->wwwroot . '/mod/wiki/instancecomments.php?pageid=' . $pageid . '&id=' . $commentid . '&action=' . $action;
         wiki_print_editor_wiki($this->page->id, $com->content, $this->format, -1, null, false, array(), 'editcomments', $commentid);
     }
 }